Value Collection 451072PR Hex Head Cap Screw 3/8-16 Grade 8

Product Description

The VALUE COLLECTION 451072PR is a Grade 8 steel hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. With a 3/8-16 UNC thread size and a 6-1/2 inch length under head, this partially threaded fastener delivers the clamping force and shear resistance required in demanding installations. The bright, uncoated finish maintains the steel's natural surface without added plating. It conforms to ASME B18.2.1 dimensional standards, making it a reliable choice for applications where specification compliance is required. Installed with a 9/16-inch hex key or wrench.

This cap screw is suited for use in general industrial maintenance, equipment fabrication, and structural fastening where Grade 8 tensile strength is specified. The partially threaded shank provides a smooth bearing surface through the joint, which is preferable in bolted connections where shear loading is a factor. Typical users include millwrights, maintenance technicians, pipefitters, and mechanical contractors working on equipment frames, flanged connections, and structural steel assemblies.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 3/8-16 UNC thread form for broad tooling and nut compatibility
• Partially threaded shank provides a bearing surface for shear-loaded joints
• Bright, uncoated finish — no plating that could affect dimensional tolerance in tight clearances
• Meets ASME B18.2.1 dimensional standards
• Driven with a standard 9/16-inch hex wrench or socket

Compatibility

Designed for use with 3/8-16 UNC nuts and tapped holes conforming to standard inch-series thread specifications in Grade 8 fastener applications.

Installation Notes

Installation is performed by qualified mechanics or maintenance technicians using a 9/16-inch socket or open-end wrench. Ensure mating holes and nuts are clean and free of debris before assembly. Apply appropriate thread lubricant or anti-seize compound where specified by the equipment manufacturer. Do not mix Grade 8 fasteners with lower-grade nuts, as mismatched hardware can compromise joint integrity.